Improved target tracking with aspect angle information

In traditional radar target tracking, only bearing and range measurements are used, and the tracking precision can not be further improved because of insufficient target information. In this paper, an improved tracking method is proposed by utilizing the capability of high range resolution radar. The algorithm is based on target aspect angle, which is an indirect measurement obtained from high range resolution profile (HRRP) recognition. The performance improvement of tracking comes from this additional useful information of aspect angle, which is inherently related with target motion state. Simulation results show that the presented method has high tracking precision, and it is superior to the tracking algorithm with range rate measurement.